.main {
    position: relative;
    width: 100%;
    height: 110vmin;
    margin-top: 20vmin;
    overflow: hidden;
}

.game-normal-bg {
    @extend %game-normal-bg;
}

.game-fire {
    position: fixed;
    top: 0;
    width: 100%;
    pointer-events: none;
}